Alexandra Burke dazzles Dublin in Missguided Posy open back sequin dress Just £27.99 from Missguided.co.uk! Posy dress £27.99 from missguided.co.uk Alexandra Burke worked the crowds and the dress, at the O2 Dublin Childline gig, combining this season’s trend for super-short dress lengths/long sleeves with plenty of sequin sparkle. Alexandra has shown a penchant for designer glitter and shine of late – giant size glossy sequins...